fix: Prevent LanguageServers.forProject().anyMatching() from blocking

[sebthom]

This PR addresses #894

LanguageServers.forProject(...).anyMatching() may unexpectedly block for up to 10 seconds per matching language server.

The issue occurs because LanguageServers.forProject(...).anyMatching() internally calls LanguageServiceAccessor.capabilitiesComply(), which in turn invokes LanguageServerWrapper.getServerCapabilities(). This method waits up to 10 seconds for the server to initialize, causing potential delays.

This fix ensures non-blocking behavior by addressing the synchronous invocation chain.

---

The offending call chain is:

org.eclipse.jface.text.TextViewerHoverManager.doPresentInformation() or
org.eclipse.ui.internal.views.markers.MarkersTreeViewer.doUpdateItem()
-> LSPCodeActionMarkerResolution.checkMarkerResolution()
   -> LanguageServerProjectExecutor.withCapability(ServerCapabilities::getCodeActionProvider)
        .anyMatching()
      -> LanguageServerProjectExecutor.getServers()
         -> LanguageServiceAccessor.getStartedWrappers()
            -> ...capabilitiesComply(ServerCapabilities::getCodeActionProvider)
               -> LanguageServerWrapper.getServerCapabilities()
                  -> ...getInitializedServer().get(10, TimeUnit.SECONDS);

[rubenporras]

@sebthom , I was planning on doing a release early next week. Since I see you are now working very actively on LSP4E, should I wait for some PR that you may have planned?

[sebthom]

@sebthom , I was planning on doing a release early next week. Since I see you are now working very actively on LSP4E, should I wait for some PR that you may have planned?

Feel free to release as planned. Thanks for checking!